I know this is horribly gross and sad. We have been loosing hens off n on since October after introducing new hens. It was a rough winter some had respiratory infections. The week before last week one of the newer passed unexpectedly while I was out of town. One has had her tail feathers down since molt and will look drowsy at times then perk up. Another started to close one eye and was not too steady on her feet today. She couldn't jump onto roost so I brought her in. Shes eating and drinking but I decided to give her some dropper vitamins and electrolytes. After holding her I felt like a flea was crawling on my leg and neck. I pulled down my sweats...2 lice... reached in my hsir. Another!!! Im freaking out. Took a shower, going to itch all night. But I wonder if the lice have her sick or if she is passing and they are leaving her body? Also they look just like human head lice!!!!!